Phenology and growth of Hirschfeldia incana biotypes from Core Region of Argentina Humid Pampas
Hirschfeldia incana (L.) Lagr.-Foss, an exotic weed in Argentina, is well adapted to different climate, soil, and crop conditions, and is particularly abundant in the southern region of Santa Fe province. The design of rational weed management strategies requires detailed information on biotypes beh...
| Autores principales: | , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Ediciones INTA
2025
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/24620 https://doi.org/10.58149/d3qn-bx20 |
| _version_ | 1855487366233325568 |
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| author | Crespo, Roberto Javier Zanczuk, Fernando Adrián Gosparini, Carlos Omar Montecchiarini, Nidia Helga |
| author_browse | Crespo, Roberto Javier Gosparini, Carlos Omar Montecchiarini, Nidia Helga Zanczuk, Fernando Adrián |
| author_facet | Crespo, Roberto Javier Zanczuk, Fernando Adrián Gosparini, Carlos Omar Montecchiarini, Nidia Helga |
| author_sort | Crespo, Roberto Javier |
| collection | INTA Digital |
| description | Hirschfeldia incana (L.) Lagr.-Foss, an exotic weed in Argentina, is well adapted to different climate, soil, and crop conditions, and is particularly abundant in the southern region of Santa Fe province. The design of rational weed management strategies requires detailed information on biotypes behavior and growth characteristics. The objectives of this work were to study: 1) the phenology and growth, and 2) the germination response under varying light and temperature conditions of different populations (L1 and L2) of H. incana from the southern region of Santa Fe Province. Under semi-controlled conditions, seeds from L1 and L2 populations were used to assess phenological parameters, growth, and seed production. In two additional experiments, we evaluated germination responses: Experiment 1) assessed the effect of blue, green, red, and white light, and darkness on germination (populations L1 and L2); Experiment 2) evaluated the effect of temperature (7–29°C) on germination (populations L1, L2, and a third population designated FH1). Plants from populations L1 and L2 exhibited similar phenological development but differed in rosette diameter (20 ± 3.3 cm vs. 26 ± 2.4 cm, respectively), resulting in differences in leaf area and greater silique and seed production output in the L2 population. In both populations, a photoblastic index near zero indicated light-insensitive seeds. Seeds germinated across a broad temperature range above 10°C, with maximum germination occurring between 19°C and 30°C. Additionally, H. incana seed viability declined two years after harvest. Further research is needed to better understand the mechanisms regulating physiological dormancy in H. incana and to develop strategies to enhance its germination independently of light. |
| format | Artículo |
| id | INTA24620 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Ediciones INTA |
| publisherStr | Ediciones INTA |
| record_format | dspace |
| spelling | INTA246202025-12-18T10:19:27Z Phenology and growth of Hirschfeldia incana biotypes from Core Region of Argentina Humid Pampas Crespo, Roberto Javier Zanczuk, Fernando Adrián Gosparini, Carlos Omar Montecchiarini, Nidia Helga Malezas Escarda Biotipos Weeds Weed Control Biotypes Phenology Fenología Hirschfeldia incana Control de Malezas Fotoblastismo Photoblastism Región Pampeana Húmeda Hirschfeldia incana (L.) Lagr.-Foss, an exotic weed in Argentina, is well adapted to different climate, soil, and crop conditions, and is particularly abundant in the southern region of Santa Fe province. The design of rational weed management strategies requires detailed information on biotypes behavior and growth characteristics. The objectives of this work were to study: 1) the phenology and growth, and 2) the germination response under varying light and temperature conditions of different populations (L1 and L2) of H. incana from the southern region of Santa Fe Province. Under semi-controlled conditions, seeds from L1 and L2 populations were used to assess phenological parameters, growth, and seed production. In two additional experiments, we evaluated germination responses: Experiment 1) assessed the effect of blue, green, red, and white light, and darkness on germination (populations L1 and L2); Experiment 2) evaluated the effect of temperature (7–29°C) on germination (populations L1, L2, and a third population designated FH1). Plants from populations L1 and L2 exhibited similar phenological development but differed in rosette diameter (20 ± 3.3 cm vs. 26 ± 2.4 cm, respectively), resulting in differences in leaf area and greater silique and seed production output in the L2 population. In both populations, a photoblastic index near zero indicated light-insensitive seeds. Seeds germinated across a broad temperature range above 10°C, with maximum germination occurring between 19°C and 30°C. Additionally, H. incana seed viability declined two years after harvest. Further research is needed to better understand the mechanisms regulating physiological dormancy in H. incana and to develop strategies to enhance its germination independently of light. Hirschfeldia incana (L.) Lagr.-Foss es una maleza exótica en Argentina y se adapta bien a diferentes condiciones de clima, suelo y cultivos. Es particularmente abundante en el sur de la provincia de Santa Fe. Es de interés estudiar los biotipos locales que contribuyan a diseñar estrategias racionales de manejo de malezas. Los objetivos del trabajo fueron estudiar: 1) la fenología y el crecimiento, y 2) la germinación bajo diferentes condiciones lumínicas y térmicas, de diferentes poblaciones de H. incana pertenecientes a la región sur de la provincia de Santa Fe. Se tomaron plantas de H. incana de dos lotes localizados en el departamento Caseros, provincia de Santa Fe, para obtener semillas (poblaciones L1 y L2). En condiciones semicontroladas, dichas semillas se utilizaron para evaluar parámetros fenológicos, el crecimiento y la producción de semillas de ambas poblaciones. En dos experimentos adicionales se evaluaron: E1) el efecto de la luz azul, verde, roja y blanca, así como de la oscuridad (poblaciones L1 y L2), y E2) el efecto de la temperatura (entre 7 y 29 °C), sobre la germinación de las semillas utilizando una tabla de gradiente térmico (poblaciones L1, L2 y una tercera llamado FH1). Las plantas de las poblaciones L1 y L2 presentaron similar fenología, pero se diferenciaron en el diámetro de la roseta (20 ± 3,3 cm vs. 26 ± 2,4 cm, respectivamente), lo que generó un área foliar diferente, y una mayor respuesta de la población L2 en producción de silicuas y semillas. Para ambas poblaciones, el índice de fotoblastismo fue cercano a cero, lo que indica que las semillas son insensibles a la luz. Las semillas germinaron en un amplio rango de temperaturas superiores a 10 °C y con valores máximos de germinación de 19 °C a 30 °C. Además, la viabilidad de la semilla de H. incana disminuyó dos años después de la cosecha. Es importante continuar con estudios que permitan comprender mejor los mecanismos que están regulando la latencia fisiológica en H. incana y las estrategias para incrementar su germinación sin depender de la luz. EEA Paraná Fil: Crespo, Roberto Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina Fil: Crespo, Roberto Javier. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina Fil: Zanczuk, Fernando Adrián. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina Fil: Zanczuk, Fernando Adrián. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ciencias Agrarias de Rosario; Argentina Fil: Zanczuk, Fernando Adrián. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; Argentina Fil: Zanczuk, Fernando Adrián. Consejo Interuniversitario Nacional (CIN). Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina Fil: Gosparini, Carlos Omar. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina Fil: Gosparini, Carlos Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ciencias Agrarias de Rosario; Argentina Fil: Gosparini, Carlos Omar. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; Argentina Fil: Montecchiarini, Nidia Helga. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina Fil: Montecchiarini, Nidia Helga. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ciencias Agrarias de Rosario; Argentina Fil: Montecchiarini, Nidia Helga. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; Argentina 2025-12-18T10:17:08Z 2025-12-18T10:17:08Z 2025-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/24620 0325-8718 1669-2314 https://doi.org/10.58149/d3qn-bx20 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Ediciones INTA RIA 51 (3) : 132-139. (diciembre 2025) |
| spellingShingle | Malezas Escarda Biotipos Weeds Weed Control Biotypes Phenology Fenología Hirschfeldia incana Control de Malezas Fotoblastismo Photoblastism Región Pampeana Húmeda Crespo, Roberto Javier Zanczuk, Fernando Adrián Gosparini, Carlos Omar Montecchiarini, Nidia Helga Phenology and growth of Hirschfeldia incana biotypes from Core Region of Argentina Humid Pampas |
| title | Phenology and growth of Hirschfeldia incana biotypes from Core Region of Argentina Humid Pampas |
| title_full | Phenology and growth of Hirschfeldia incana biotypes from Core Region of Argentina Humid Pampas |
| title_fullStr | Phenology and growth of Hirschfeldia incana biotypes from Core Region of Argentina Humid Pampas |
| title_full_unstemmed | Phenology and growth of Hirschfeldia incana biotypes from Core Region of Argentina Humid Pampas |
| title_short | Phenology and growth of Hirschfeldia incana biotypes from Core Region of Argentina Humid Pampas |
| title_sort | phenology and growth of hirschfeldia incana biotypes from core region of argentina humid pampas |
| topic | Malezas Escarda Biotipos Weeds Weed Control Biotypes Phenology Fenología Hirschfeldia incana Control de Malezas Fotoblastismo Photoblastism Región Pampeana Húmeda |
| url | http://hdl.handle.net/20.500.12123/24620 https://doi.org/10.58149/d3qn-bx20 |
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